Navalyze · Vehicle carrier · Ship

SWALLOW ACE

IMO: 9338620
Type: Vehicle carrier
Average cargo carried: 6,251 t
Flag (estimated): Japan
Port of registry: Tokyo
Technical efficiency: EEXI 14.92 g CO₂/t·nm

ISM company (DoC holder) in 2025: MOL SHIP MANAGEMENT (SINGAPORE) PTE. LTD. · part of MOL

Report year

2022 at a glance

From the 2022 THETIS-MRV report. Carries about 5,688 t of cargo on average.

Fuel kg/nm

96.8

Vehicle carrier median 108 kg/nm (−10%)

CO₂ per transport work (cargo)

53.7

g CO₂/t·nm · Vehicle carrier median 57.7 (−7%)

Average speed

16.1 kn

Vehicle carrier median 14.4 kn (+12%)

Fuel per day at sea

37.4 t/day

Fuel consumed

2,214 t

CO₂ emitted

6,986 t

Distance sailed

22,884 nm

CO₂ ÷ CO₂ per mile

Time at sea

1,421 h

59 days, 16% of the year

Within the vehicle carrier fleet, 2025

Set against all 506 vehicle carrier ships with a full-year 2025 report. Bigger ships burn more per mile but less per tonne of cargo, so read fuel per mile with the ship's size in mind.

Fuel kg/nmThis ship 108 kg/nm · median 99.9 (+8%)

79.6Ranks 381 of 506, lowest first119

Average speedThis ship 16.1 kn · median 14.4 (+12%)

12.0Faster than 92% of vehicle carrier ships15.9

CO₂ per transport work (cargo)This ship 54.1 g CO₂/t·nm · median 55.4 (−2%)

34.7Ranks 242 of 506, lowest first158

Middle 80% of shipsMiddle 50%Vehicle carrier medianThis ship

Where the emissions happen, 2022

THETIS splits each ship's CO₂ by voyage type. The split sets how much falls under the EU ETS: all of it within the EU and at berth, half of it on voyages into or out of the EU.

Between EU ports2%
From the EU45%
Into the EU51%
At berth in the EU2%

Fuel burned laden

1,844 t

83% of all fuel; 17% in ballast or unladen

CO₂ at berth

152 t

2.2% of the ship's CO₂, alongside in EU ports

Methane (CH₄)

–

Mainly from LNG; small for oil, biofuel and methanol

CO₂eq uplift

–

CO₂eq on top of CO₂ alone, from CH₄ and N₂O

Over the years

Full-year reports only. The Vehicle carrier median is the middle ship of all vehicle carrier ships reporting that year; it moves with the fleet, so a ship can gain on it without changing itself.

Fuel kg/nm

SWALLOW ACE
Vehicle carrier median

90.095.0100.0105.0110.0

’182018’192019’212021’222022’232023’242024’252025

Average speed, kn

SWALLOW ACE
Vehicle carrier median

14.015.016.017.0

’182018’192019’212021’222022’232023’242024’252025

CO₂ per transport work (cargo), g CO₂/t·nm

SWALLOW ACE
Vehicle carrier median

50.060.070.080.0

’182018’192019’212021’222022’232023’252025

Year on year

Year	Average speed	Fuel kg/nm	Fuel per day at sea	Distance	CO₂ per transport work	Reading
2024→2025	+0.4 kn	+2%	+5%	−52%	–	0.4 kn faster, fuel per mile up 2%; in line with the speed change.
2023→2024	−0.1 kn	+12%	+12%	+279%	–	Same speed, fuel per mile up 12%; worse than speed alone explains (fouling, weather, loading or trade).
2022→2023	−0.3 kn	−2%	−4%	−59%	−6%	0.3 kn slower, fuel per mile down 2%; in line with the speed change.
2021→2022	−0.3 kn	+7%	+5%	+56%	−10%	Same speed, fuel per mile up 7%; worse than speed alone explains (fouling, weather, loading or trade).
2019→2021	+1.6 kn	−10%	−1%	−19%	−19%	1.6 kn faster, fuel per mile down 10%; better than speed alone explains (hull, engine or trade).
2018→2019	−0.6 kn	−2%	−6%	−32%	+14%	0.6 kn slower, fuel per mile down 2%; worse than speed alone explains (fouling, weather, loading or trade).

Fuel per mile rises roughly with the square of speed for a given ship, so a change in speed explains much of a change in fuel per mile.

Every reporting year

One row per THETIS-MRV report. A ship that changed operator during a year has a part-year report for each.

Operation

Year	ISM company	Fuel t	CO₂ t	Distance nm	Hours at seah	Average speedknots at sea	Fuel kg/nmthis ship	CO₂ per transport work (cargo)g/t·nm, this ship	Laden fuel
2025	MOL SHIP MANAGEMENT (SINGAPORE) PTE. LTD.	1,836	5,739	16,957	1,052	16.1	108	54.1	98%
2024	MOL SHIP MANAGEMENT (SINGAPORE) PTE. LTD.	3,762	11,724	35,472	2,256	15.7	106	–	98%
2023	not published	886	2,796	9,349	594	15.8	94.7	50.6	98%
2022	not published	2,214	6,986	22,884	1,421	16.1	96.8	53.7	83%
2021	not published	1,324	4,182	14,693	896	16.4	90.1	59.5	97%
2019	not published	1,825	5,724	18,138	1,227	14.8	101	73.4	67%
2018	not published	2,762	8,647	26,828	1,739	15.4	103	64.3	–

Benchmark and verification

Year	ISM company	CO₂ per TW, g CO₂/t·nm	Vehicle carrier median	vs Vehicle carrier	Rank	Verifier	Methods
2025	MOL SHIP MANAGEMENT (SINGAPORE) PTE. LTD.	54.1	55.4	−2%	242 of 506	ClassNK	C
2024	MOL SHIP MANAGEMENT (SINGAPORE) PTE. LTD.	–	–	–	–	ClassNK	C
2023	not published	50.6	56.6	−11%	155 of 417	ClassNK	C
2022	not published	53.7	57.7	−7%	196 of 463	ClassNK	C
2021	not published	59.5	59.6	−0%	229 of 459	ClassNK	C
2019	not published	73.4	59.0	+24%	302 of 426	ClassNK	C
2018	not published	64.3	62.4	+3%	236 of 434	ClassNK	C

Fuel per mile and CO₂ per tonne-mile are the ship's own reported KPIs. Vehicle carrier ships are benchmarked on CO₂ per transport work (cargo) (TW), in g CO₂/t·nm. CO₂eq adds methane and nitrous oxide and is in the public files from 2024. Rank counts from the lowest figure among that year's vehicle carrier ships. Methods: A delivery notes, B tank monitoring, C flow meters, D direct measurement. FuelEU GHG intensity is not shown: it needs fuel types, which the public file does not carry. Operators are named only from 2024, the first year the public files carry them; earlier years belong to the ship, not to any company.